1 /*- 2 * Copyright (c) 1999, 2000, 2001, 2002, 2003 Lev Walkin <vlm@lionet.info>. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $Id: sf_fpos.h,v 1.2 2005/05/25 21:55:10 vlm Exp $ 27 */ 28 29 #ifndef __SF_LPOS_H__ 30 #define __SF_LPOS_H__ 31 32 #include <stdio.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif /* __cplusplus */ 37 38 39 /*******************************/ 40 /*** File position functions ***/ 41 /*******************************/ 42 43 /* 44 * initfdpos() creates a position indicator file "filename.ext", and 45 * returns its file descriptor. If the position file is already exists, 46 * then initfdpos() advances stream's position according to the information 47 * derived from that file. 48 * 49 * RETURN VALUES: 50 * 51 * Position file descriptor, or -1 in case of failure. 52 */ 53 int initfdpos(const char *filename, int stream, const char *ext); 54 int initFILEpos(const char *filename, FILE *stream, const char *ext); 55 56 /* 57 * adjfdpos() writes the current position within the file referenced by stream 58 * into the posfd. If doSync is not zero, it also does fsync(posfd) to submit 59 * changes to disk. 60 * 61 * RETURN VALUES: 62 * 63 * Return values: 0 (Success) or -1 in case of any errors. 64 */ 65 int adjfdpos(int stream, int posfd, int doSync); 66 int adjFILEpos(FILE *stream, int posfd, int doSync); 67 68 69 #ifdef __cplusplus 70 } 71 #endif /* __cplusplus */ 72 73 #endif /* __SF_LPOS_H__ */ 74